Brake-shoe.



H. JONES.

BRAKE sHoE. APPLICATION FILED DEC. 28| |916 Patented Mar. 13, 1917.

A TRNEYS l HARRY JONES, 0F SUFFERN, NEW YORK, `.ASSIGrNOR T0 THEAMERICAN BRAKE SHOE & FOUNDRY COMPANY, OF WILMINGTO WARE.

N, DELAWARE, A CORPORATION or' DELA- BRAKE-SHOE. f

Specification of Letters Patent.

Patented Mar. 13, 191'?.

Application led December 28, 1916. Serial No. 139,254.

To all 'whom it may concern:

Be it known that'l, HARRY JONES, a citi- Suffern, in the county ofRockland and State of New York, have made and invented certain new anduseful Improvements in Brake-Shoes, of which the following isl aspecification.

My invention relates to brake shoes, and particularly to that class ortype which are formed with hard metal inserts incorporated in the bodyof the shoe, presenting a composite wearing face.

The presence of the hard metal inserts lengthens the wearing life of theshoe, and also provides for the desired amount of dressing action uponthe wheel tire. `In order to hold these hard metal inserts in place asthe body of the shoe is being worn away, it has heretofore beencustomary to cast or form thehard metal insert upon an openworkreinforcing member, and subsequently place the two in the shoe cavity ofa mold and form or cast the body of the shoe therearound.Thisconstruction resultsin a costly and expensive shoe and involvesconsiderable labor and difhculties in its manufacture. A somewhatdifferent method, heretofore used, for securing the inserts in place,was by forming the same as a number of separate blocks andvprovidingthem with projections extending toward the wearing face of the shoe.`Theseprojections extended through the` openings or mesh in an openworkreinforcing member, tending to hold the separate inserts in place andsubsequently aiding in anchoring the inserts in the body of the shoe. Inactual practice, however, the inserts in some instances would shift onewith respect to the other, preventing the proper iow of cast metalbetween the adjacent inserts. A further disadvantage to thisconstruction, was that after the body of the shoe andv reinforcingmember, which latter was adjacent the wearing face of the shoe, had beenwornaway, the inserts would become dislodged and drop from the shoe.

It is therefore an object of the present invention to form a brake shoewherein the inserts are provided with rearwardly enlarging projectionsextending toward the back of the shoe, and also projections extendingtoward `the wearing face thereof. The rearwardlyr extending projectionsreceive the strands of a reinforcing member therebetween, and arerigidly anchored thereto by the cast metal of the body of the shoe whichis formed therearound. The inserts are accordingly securely held andanchored in the body of the shoe, and so'maintained as the shoe becomesworn away inr service.

A further object is to provide a brake shoe inforcing members, sothatthe inserts are positively held in their proper spaced relation as thecast metal of the body of the shoe is formed therearound, whereby auniform amount of cast metal extends to each side of the hard metalinserts, aiding in the securement and anchorage of the inserts andproviding for the proper wear of the shoe. To this end, the reinforcingmembers are provided with spaced pockets in which the inserts arepositioned, the formation of the pockets being such that an unobstructedpassage and space is provided for the'liow of the molten metal above andbelow the inserts and reinforcing members.

Other objects and advantages will appear as the description proceeds,wherein it is to be understood that changes in the precise embodiment ofthe invention may be made within the scope of what is claimedwithoutdeparting from the spirit thereof.

The preferred embodiment of Vmy invention is illustrated in theaccompanying drawings, wherein: l

Figure l is a top plan View of my improved brake shoe, portions of thebody being broken away, disclosing the internal arrangement of insertsand openwork rein- Referring specifically to the several views, for thepurposes of illustration, I have shown a driver shoe consisting of thebody 10, back 11 and flange 12. Located within the body of the shoe, arethe hard metal Y jections lei are sharply beveled or tapered y toward.their extremities, defining downwardly enlarging or dove-tailed openings17 between the adjacent projections npon the inner face of the insert.An openworl; metal reinforcing` member 18 is provided and is positionedwith the strands thereof j contained within the dove-tailed openings ofthe several inserts, being so assembled prior to the casting of the bodyof the shoe therearound. The cast metal ofthe body of the shoe extendswithin the openings or spaces 17l between adjacent projections 14:, andanchors each and every insert to the reinforcing: member and preventsthem from becoming detached from the shoe asthe body thereof and thegreater portion of the inserts are worn away in service. In order tofurther strengthen the body of the shoe and to maintain the inserts inspaced position prior to the forming of the cast metal of the body ofthe shoe therearound, the lower or outer openworlr metal reinforcingmember 19 is provided, and receives the outer projections l5 of theinserts therethrough.

ln order to prevent the inserts from shifting or moving about as thebody of the shoe is being cast, l have provided the form of constructionillustrated in Fig. Ll, wherein the openwork metal' reinforcing members2 0 and 21 are provided at spaced intervals with confronting depressionsor flutes 22, between whichthe hard metal inserts 211iv are seated. lTheinwardly and outwardly extending'- projections 25 and 26 extend throughthe openings in the reinforcing members'and are anchored thereto at thetime of casting therbody'of the shoe therearound. The confronting'depressions or flutes 22 form channels and passageways for the moltenmetal, insuring a flawless casting.

What I claim is 1. A brake shoe consisting of a cast metal body, aninsert incorporated therein and provided with projections extendinginwardly away. from the wearing face of the shoe, and an openwork metalreinforcing member with the strands thereof extending between the saidprojections and anchored thereto by the cast metal of the body of theshoe.

2. A brake shoe consisting of a cast metal body, an insert incorporatedtherein and provided with projections extending inwardly away from thewearing faceof the shoe, said projections defining dove-tailed openingstherebetween, and a reinforcing member of openwork metal extendingthroughout the body of said shoe, with the strands thereofextendingthrough saidl dove.-

tailed openings and anchored to said insert.

3. A brake shoe consisting of a cast metal body, an openworkv metalreinforcing member adjacent the back thereof, and a hard metal insertincorporated in the body of said shoe and provided with projectionsextending inwardly away from the wearing face of said shoe, saidprojectionsenlarging towardtheir outer extremities and receiving thestrands of the-reinforcing member therebetween-and anchored thereto.

Ll. A brake shoe consisting of a cast metal body, a plurality of hardmetal inserts incorporated in said body and providedv with projectionsextending inwardly away from the wearing face ofthe shoe', saidprojections enlarging toward their free extremities, areinforcing memberof openworkductile metal extending throughout the body of said, shoeandreceiving the said projections between the strandsthereof to-whichvthe said projections are anchored.

5. Av brake shoe consisting of a cast metal body, a hard metal insertincorporated therein and provided with projections extending toward thewearing face of said shoe' andv with projections extending away fromthe` wearing face of said shoe, and spaced rein-V forcing members ofopenwork metal incorporated in the body of said shoe, receiving;` theprojections of said inserts between theV strands thereof, the cast metalof the body of the shoe anchoring the strands of the reinforcing membersto the projections of thesaid insert. u

6. A brake shoe consistingl of a cast metal body, Van insertincorporated therein andv provided with inwardly and outwardly extendingprojections, said insert and pro-jections tapered or beveled toward thewear-I ing face of the shoe, spaced reinforcing; members of openworkduetile metal receiving said insert therebetween, with' thel projectionsthereof extending between the strandsof the reinforcing members, thecast metal of the body of the shoe anchoring the strands of thereinforcing members to the projections of the said insert. Y

717A brake shoe consisting of aplurality of spaced inserts, spacedopenwork reinforcing members receivingfsaid inserts there-- between,said reinforcing members provided`

